The Libyan rebels' only plane is shot down over Benghazi. Libya's rebel stronghold came under attack, with at least two air strikes and sustained shelling of the city's south sending thick smoke into the sky

Libyan government spokesman Dr Ibrahim Musa pauses as he reads a letter sent to US President Barack Obama by Muammar Gaddafi at a press conference in Tripoli, warning international forces they would 'regret' intervening in Libya